Hi Jamal.. So I am also new to graphbuilder.. So please take my advice from grain of salt and wait for others to reply. I just tried to run graphbuilder demoapps on pseduo-distributed mode and here are my notes. Also, I am on mac... 1) Set up pseudo-distributed node and lets say the hadoop is on /Users/hduser/hadoop-x.y.z/ 2) Next copy the graphbuilder in a folder where it can be accessed by hduser.. I copied it on /tmp/graphbuilder 3) cd /tmp/graphbuilder .. --> %mvn package 4) From the web (wget or curl) http://dumps.wikimedia.org/enwiki/latest/ enwiki-latest-abstract1.xml<http://dumps.wikimedia.org/enwiki/latest/e... and save it on /tmp/wiki/ The whole dump is like 8gb.. so I used just one file instead 5) Now... go to your hduser account ( su - hduser and login to your hadoop account) 6) cd /Users/hduser .. copy the wiki file to hdfs by /bin/hadoop dfs -copyFrom Local /tmp/wiki /Users/hduser/wiki-input Cross check bin/hadoop dfs -ls /Users/hduser you should see wiki-input listed there 7) Now run it by... bin/hadoop jar /tmp/graphbuilder/target/graphbuilder-0.0.1-SNAPSHOT-hadoop-job.jar com.intel.hadoop.graphbuilder.demoapps.wikipedia.linkgraph.LinkGraphEnd2End 2 /Users/hduser/wiki-input /Users/hduser/wiki-output This should run the app . The only issue I am facing is where is the output... I see in one of the steps.. hadoop throws an error that it failed to create an intermediatory output NFO edge.EdgeIngressMR: gzip = false 12/12/24 21:19:22 INFO edge.EdgeIngressMR: =============================================================== 12/12/24 21:19:22 WARN mapred.JobClient: Use GenericOptionsParser for parsing the arguments. Applications should implement Tool for the same. 12/12/24 21:19:22 INFO mapred.JobClient: Cleaning up the staging area hdfs://localhost:9000/tmp/hadoop-hadoop/mapred/staging/hadoop/.staging/job_201212242100_0003 *12/12/24 21:19:22 ERROR security.UserGroupInformation: PriviledgedActionException as:hadoop cause:org.apache.hadoop.mapred.InvalidInputException: Input path does not exist: hdfs://localhost:9000/Users/hadoop/wiki-output/graph_norm/vdata* *Input path does not exist: hdfs://localhost:9000/Users/hadoop/wiki-output/graph_norm/edata* I am not sure what was the issue.. If you or someone can help me with that.. it would be great. Hope this helps. On Mon, Dec 24, 2012 at 12:30 AM, jamal sasha <jamalshasha(a)gmail.com&gt;wrote: > hi, > I am actually new to java.. so maybe thats the issue. > but basically i downloaded graphbuilder code.. and then did > mvn package > and then downloaded a wiki dataset > I am getting the error > > *%~/Desktop/hadoop-1.0.1/bin/hadoop > target/graphbuilder-0.0.1-SNAPSHOT-hadoop-job.jar > com.intel.hadoop.graphbuilder.demoapps.wikipedia.linkgraph.LinkGraphEnd2End > 1 ~/Desktop/graphbuilder-beta/wiki_data/ ~/Desktop/graphbuilder-beta/output > * > Exception in thread "main" java.lang.NoClassDefFoundError: > target/graphbuilder-0/0/1-SNAPSHOT-hadoop-job/jar > Caused by: java.lang.ClassNotFoundException: > target.graphbuilder-0.0.1-SNAPSHOT-hadoop-job.jar > at java.net.URLClassLoader$1.run(URLClassLoader.java:202) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(URLClassLoader.java:190) > at java.lang.ClassLoader.loadClass(ClassLoader.java:306) > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) > at java.lang.ClassLoader.loadClass(ClassLoader.java:247) > > > _______________________________________________ > GraphBuilder mailing list > GraphBuilder(a)lists.01.org > https://lists.01.org/mailman/listinfo/graphbuilder > > -- Mohit "When you want success as badly as you want the air, then you will get it. There is no other secret of success." -Socrates